# Science# vs History Dial

The clearest difference is update cadence: History Dial at every 3 days against Science#'s every 6 weeks. History Dial also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Science# ships an update every 6 weeks, History Dial every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Science# | History Dial |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 11 MB | 3 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korea Digital](https://appshunter.io/developer/1472510069) | [JONGHYUN PARK](https://appshunter.io/developer/1863369780) |

## What reviewers say

### Science#

[App page](https://appshunter.io/ios/app/science/id1472510070)

This app collects real-time data from supported sensor devices for easy and accurate analysis through built-in functions. Visualize data in various formats and conduct simultaneous measurements for comparison. It includes integrated science experiment content for concept learning and analysis, along with a report writing feature.

**Highlights:** Real-time sensor data collection, Graph and data analysis, Multiple data visualization formats, Simultaneous measurement and comparison, Integrated science experiment content, Report writing function

**Features:** macOS Compatibility

**In-app purchases:** none


### History Dial

[App page](https://appshunter.io/ios/app/history-dial/id6758134704)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Science# free?

Science# is free to download, with no in-app purchases.

### Is History Dial free?

History Dial is free to download, with no in-app purchases.

### Do Science# or History Dial have ads?

Neither Science# nor History Dial shows ads.

### Which is updated more often, Science# or History Dial?

Science# ships an update every 6 weeks, and History Dial every 3 days. Most recently, Science# was updated on November 3, 2026 and History Dial on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*